[feature request] Give example of how to create tokens for services

[asuh]

While I appreciate the effort to be open to anything, it seems sensible to add some kind of hint for the admin to use a service like Bridgy to connect any service, enable the ability to publish, and create the tokens.

As it currently stands, here are two services I added to syndicate to:

When I go to the APIs page, [...]/wp-admin/admin.php?page=syndication_links&tab=apis, there's no indication of how to create the tokens. I had to review all the methods of how this indieweb ecosystem was setup before it clicked to me that I've previously gone to brid.gy to do this.

Sure, we don't have to assume anyone should or wants to use Bridgy, but any kind of indicator to direct them to use Bridgy as a method for generating tokens will be very helpful to people just getting started in this whole process.